System information

FCD 901 48
Issue R2A, 07.2009
XMP1 Release 5.5 System Description
Function groups of the SDH expansion
Page 3-32 Proprietary Information Aastra
HOA Higher Order Assembler
The HOA function scheme represents the multiplex structure. For each level
(VC-4, VC-3, VC-2 and VC-12), the TP index is numbered serially starting
from 1.
HOA function scheme
HOA application functions
TTF-1 Terminal Transport Function STM-1
The function group TTF-1 offers a synchronous optical STM-1 interface
(SPI OPTICAL). On the AU4CTP side, flexible connections can be set up
via the higher-order switching matrix HPX VC4.
Table 3.E: HOA application functions
Application functions Spont. event
Request/Respons
e
Command
Alarm information X X -
Configuration X X X
Operating status X X X
User files X X X
Reference list - X -
VC4TTP(1)
TUG3(2)
TU3CTP(1)
TUG2(2,1)
TU12CTP(i,j,k)
i=1 to 3
j=1 to 7
k=1 to 3
TUG3(1) TUG3(3)
TU3CTP(3)
TUG2(2,7)
VC4 level
VC3 level
VC12 level
TU2CTP(2,1)
TU2CTP(2,7)
VC2 level
Note: TU2 CTP is not supported by
the SDH expansion.